| 摘要 |
PROBLEM TO BE SOLVED: To prevent an influence from an adjacent channel without providing any guard bands. SOLUTION: An information sequence 1 inputted to mapping equipment 21-1 is mapped to a prescribed signal point for outputting to a frequency converter 22-1. The frequency converter 22-1 performs frequency conversion according to the intermediate frequency of an inputted signal for outputting to a multiplexer 23. Information sequences 2, 3 are subjected to the same processing as that of the information sequence 1 for outputting to the multiplexer 23. The multiplexer 23 multiplexes the inputted signal, and an IFFT computing unit 24 collectively performs inverse Fourier transformation to the multiplexed signal. The signal subjected to the inverse Fourier transformation is orthogonally modulated by an orthogonal modulator 26, is converted to a signal of an RF band by a frequency modulator 28, and is transmitted by an antenna 30. COPYRIGHT: (C)2009,JPO&INPIT
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